Engine wants to stall at idle and engine is warmed up. Rough idle causes a slight rattle sound due to vibration.

Asked by Mar 07, 2013 at 02:21 PM about the 2003 Ford Focus ZX3

Question type: Maintenance & Repair

1 Answer

27,865

you may have a vacuum leak. you may have a cylinder that is misfiring. you may have a bad idle air control valve. is the check engine light on? rough idle most of the time on those is the motor mount on the passenger fender i have put a ton of them on.

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